How many of the films named to the National Film Registry are available in the Internet Archive? I've found a few, like The City, by accident, but I was wondering if a complete list could be made available, perhaps even as a category in the "Browse Top Level" categories list. Just a thought. Thanks.

There are very few. Off the top of my head I can recall "House in the Middle" and "Master Hands." I'll take a look at the Registry list and compile a complete list.

Pitch time: as a member of the National Film Preservation Board, an advisory group that recommends titles for the Registry to the Librarian of Congress, I'd encourage everyone to nominate worthy "culturally, historically and aesthetically significant" films for the Registry. For information, see http://lcweb.loc.gov/film/vote.html.

So in addition to those in the last post there are also "The River," "Divide and Conquer" (one of the "Why We Fight" series), and, in the Feature Films collection, another "Why We Fight" film entitled "War Comes to America." There may be more Registry features in that section now or later.

Zapruder film status information webpageApparently it resides in the National Archives.

Short clips of the Tacoma bridge collapse are available online.
http://www.civeng.carleton.ca/Exhibits/Tacoma_Narrows/TacomaNarrowsBridge.mpg
or
http://www.pbs.org//wgbh/nova/bridge/images/tacoma3.mov
http://www.pbs.org//wgbh/nova/bridge/images/tacoma4.mov
However I do not think it is in public domain as they credit the same source as below.

leecherzs link on the Zapruder film mentions the "Image of an Assassination: A New Look at the Zapruder Film" which is available on dvd. Check IMDB: http://us.imdb.com/title/tt0165324/

It is a fascinating documentary on the restoration of the Zapruder film, shows for the first time the cropped part of the image between sprocket holes, and includes several slow motion, and image stabilized playbacks.